Apple Releases Safari Technology Preview 148 With Bug Fixes and Performance Improvements

by

Apple today released a new update for Safari Technology Preview, the experimental browser Apple first introduced in March 2016. Apple designed the ‌Safari Technology Preview‌ to test features that may be introduced into future release versions of Safari.

Safari Technology Preview Feature
‌Safari Technology Preview‌ release 148 includes bug fixes and performance improvements for Web Inspector, CSS Container Queries, CSS, Forms, Animations, JavaScript, Rendering, Media, Web API, Security, Loading, WebDriver, and more.

The current ‌Safari Technology Preview‌ release is built on the Safari 16 update and it includes support for feature coming in macOS Ventura such as Live Text, Passkeys, Web Extension improvements, and more.

The new build of ‌Safari Technology Preview‌ is compatible with machines running macOS 13 Ventura, unlike prior versions of ‌Safari Technology Preview‌, but it no longer works with macOS Big Sur.

The ‌Safari Technology Preview‌ update is available through the Software Update mechanism in System Preferences to anyone who has downloaded the browser. Full release notes for the update are available on the Safari Technology Preview website.

Apple's aim with ‌Safari Technology Preview‌ is to gather feedback from developers and users on its browser development process. ‌Safari Technology Preview‌ can run side-by-side with the existing Safari browser and while designed for developers, it does not require a developer account to download.

Tag: Safari Technology Preview

Popular Stories

Tim Cook WWDC 2018

Report: Tim Cook to Step Down as Apple CEO 'as Soon as Next Year'

Saturday November 15, 2025 2:40 pm PST by
Apple is preparing for Tim Cook to step down as CEO of the company "as soon as next year," according to the Financial Times. The company's board of directors and senior executives "recently intensified preparations for Cook to hand over the reins," the report said. While the report said that Apple is unlikely to name a new CEO before its next earnings report in late January, it went on to ...
Read Full Article • 465 comments
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2, AirPods Pro 3, and AirPods 4

Thursday November 13, 2025 11:35 am PST by
Apple today released new firmware designed for the AirPods Pro 3, the AirPods 4, and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B25, while the AirPods Pro 2 and AirPods 4 firmware is 8B21, all up from the prior 8A358 firmware released in October. There's no word on what's include in the updated firmware, but the AirPods Pro 2, AirPods 4 with ANC, and AirPods Pro 3...
Read Full Article • 68 comments
iOS 26

Everything New in iOS 26.2 Beta 3

Monday November 17, 2025 3:20 pm PST by
Apple provided developers with the third beta of an upcoming iOS 26.2 update, and there are still new features that are being added with each beta that we get. We've rounded up all of the changes that Apple made in beta 3. AirDrop Apple added new AirDrop functionality, providing a way for two people to share files temporarily without having to add one another as contacts. iOS 26.2...
Read Full Article • 20 comments
best early black friday deals

Best Black Friday Apple Deals Live Now - Save on AirPods, iPads, and Apple Watches

Saturday November 15, 2025 1:45 pm PST by
We're officially in the month of Black Friday, which will take place on Friday, November 28 in 2025. As always, this will be the best time of the year to shop for great deals, including popular Apple products like AirPods, iPad, Apple Watch, and more. In this article, the majority of the discounts will be found on Amazon. Note: MacRumors is an affiliate partner with some of these vendors. When ...
Read Full Article • 3 comments
Apple Wallet ID Illinois

iPhone Driver's License Feature Launching in Illinois

Tuesday November 18, 2025 8:47 am PST by
In select U.S. states, residents can add their driver's license or state ID to the Wallet app on the iPhone and Apple Watch, providing a convenient and contactless way to display proof of identity or age at select airports and businesses, and in select apps. Starting this Wednesday, November 19, the feature will be available to residents of Illinois. The announcement confirmed that the...
Read Full Article • 59 comments
iPhone Pocket Short

iPhone Pocket Now Available to Order, But Already Selling Out

Friday November 14, 2025 6:20 am PST by
Apple recently teamed up with Japanese fashion brand ISSEY MIYAKE to create the iPhone Pocket, a limited-edition knitted accessory designed to carry an iPhone. iPhone Pocket is available to order on Apple's online store starting today, in the United States, France, China, Italy, Japan, Singapore, South Korea, and the United Kingdom. However, it is already completely sold out in the United...
Read Full Article • 200 comments
apple silicon mac lineup 2024 feature purple m5

Apple's 2026 Mac Plans

Friday November 14, 2025 3:23 pm PST by
Most of Apple's Macs are slated to get M5 chips across 2026, and there's a possibility we'll even see the first M6 chips toward the end of the year. Updates are planned for everything from the MacBook Air to the Mac Studio. MacBook Air (Early 2026) The MacBook Air will be one of the first Macs to get a 2026 refresh, with an update planned for the first few months of the year. The MacBook...
Read Full Article • 157 comments
CarPlay Liquid Glass Dark

Here's When Tesla is Expected to Add Support for Apple CarPlay

Sunday November 16, 2025 6:49 am PST by
In his Power On newsletter today, Bloomberg's Mark Gurman reiterated that Tesla plans to add Apple CarPlay support to its vehicles "in the coming months." This is easily the biggest news for the regular version of CarPlay in years, should Tesla actually follow through with offering the system in its vehicles. As noted by Gurman, this would be a stunning reversal for Tesla and its CEO Elon ...
Read Full Article • 114 comments
tvOS 26 Profiles

tvOS 26.2 Adds a Useful New Feature to Your Apple TV

Friday November 14, 2025 10:02 am PST by
Starting with the upcoming tvOS 26.2 update, currently in beta, additional profiles created on the Apple TV no longer require their own Apple Account. In the Settings app on the Apple TV, under Profiles and Accounts, anyone can create a new profile by simply entering a name and indicating whether the profile is for a kid. The profile will be associated with the primary user's Apple Account,...
Read Full Article
Apple Sports App Preview Feature

Apple Sports App on iPhone Now Available in More European Countries

Monday November 17, 2025 6:27 am PST by
The free Apple Sports app on the iPhone was released in additional European countries today, including Belgium, Croatia, Czechia, the Netherlands, Luxembourg, Poland, Hungary, Denmark, Finland, Norway, Sweden, Switzerland, Slovakia, Slovenia, Serbia, Greece, Estonia, Latvia, Romania, Ukraine, and others. The app was already available in the U.S., the U.K., Canada, Austria, France, Germany,...
Read Full Article • 22 comments

Top Rated Comments

nortonandreev Avatar
nortonandreev
44 months ago
Webpages can't load (macOS Ventura).
Score: 2 Votes (Like | Disagree)
MasterControlProgram Avatar
MasterControlProgram
44 months ago
The big improvement for me that I noticed in the update notes is being able to edit suggested passwords. There’s always that one website that thinks hyphens or non-alphanumeric characters aren’t acceptable, so being able to alter the suggested password is very useful.
Score: 2 Votes (Like | Disagree)
JackNL Avatar
JackNL
44 months ago

Apple lets Safari lag far, far behind other browsers. EU & Feds start asking questions, and Apple lights up the hiring boards looking for browser engineers. Tim is a good ops guy, but cannot see the forest whilst harvesting its most profitable trees. Fingers crossed Apple is forced to allow other browser engines to power browsing on iOS & iPads. It is really hard to argue that Apple's M$FT-like monopoly on the pad/phone browser app is good for us -- but I am sure many here will flame me with reasons why this is so.
I actually like Safari a lot, it's speedy and the integrated passwords with keychain is excellent - including having your passwords in iOS as well.

(I do run Brave as well for Web3 stuff, but I always come back to Safari for main browsing).
Score: 2 Votes (Like | Disagree)
MauiPa Avatar
MauiPa
44 months ago

Apple lets Safari lag far, far behind other browsers. EU & Feds start asking questions, and Apple lights up the hiring boards looking for browser engineers. Tim is a good ops guy, but cannot see the forest whilst harvesting its most profitable trees. Fingers crossed Apple is forced to allow other browser engines to power browsing on iOS & iPads. It is really hard to argue that Apple's M$FT-like monopoly on the pad/phone browser app is good for us -- but I am sure many here will flame me with reasons why this is so.
I guess, you said it, it must be so. I actually did a browser benchmark test after google (chrome sucks!) bragged about being so fast. Not sure how they doctored their results, but on my m1 MBP, safari and Safari technology preview blew away brave, chrome (didn’t come close to breaking 300 on speedometer as they claimed) and poor Firefox was dismally last. So there is that. Fast, features work. Never confuse personal preference for actually being better or worse, that is not opinion (opinions are based on facts), that is just feelings
Score: 1 Votes (Like | Disagree)
ZipZilla Avatar
ZipZilla
44 months ago
RIP Safari on Catalina.

Firefox, Edge and Brave forever!
Score: 1 Votes (Like | Disagree)
brunerd Avatar
brunerd
44 months ago
Send your 5th birthday wishes to this WebKit bug - it'll be turning 5 years old this July 28th! ??
Bug 174931 ('https://bugs.webkit.org/show_bug.cgi?id=174931') - Implement RegExp lookbehind assertions

Safari is the ONLY major browser that doesn't support this ES2018 feature!? You can look here ('https://kangax.github.io/compat-table/es2016plus/') and it's just this sad little island of red. Why won't they implement this?

Attachment Image
Score: 1 Votes (Like | Disagree)
Read All Comments